Amazon has just launched an iPad app for its Instant Video service, 9to5Mac reports. Thanks to the app, Prime subscribers in the US will also be able to stream Amazon’s film & TV catalogue right from their tablet at no additional cost.

As you may know, Amazon Instant Video store includes an on-demand catalogue of 120,000 videos. As for Prime Instant Video, it is free to subscribers of Amazon Prime’s 2-day shipping service, which costs $79/year. Prime Instant Video boasts a catalogue of over 20,000 video titles available for instant streaming, although this number is controversed, as it includes individual episodes.

While the service works on multiple platforms and recently landed on the Xbox 360, this new iPad app is a welcome addition to Instant Video’s access points, not to mention that Whispersync lets users resume viewing across devices. Here’s the app description in the App Store:

As mentioned above, the app supports offline viewing, an interesting feature for sure. Here are a few official screenshots:

The app also lets users access content they have added to their watchlist from other devices:

It’s been a busy week for Amazon news; a couple days ago, the company unveiled a licensing deal with Warner Bros to boost its Instant Video library, following similar deals with with MGM and Paramount. No later than yesterday, it also made an important update to its cloud music service, Cloud Player, which is now ready to compete head-to-head with Apple’s iTunes Match.